I followed the procedure for OBD1 code reader and pulled out the codes from my 1994 Mercedes E320 yesterday. There were two codes, Code 6 and Code 24 were stored on Emission Built in Diagnostic Module. I think for 1994 E320 the error code relates to Code 6 - Idle speed control faulty and Code 24 - Starter ring gear segments and/ or crankshaft position sensor faulty.

On Pin 8 ECU - Code 6 - not used and code 24 - CKP sensor or magnet for position sensot not recognized

What do these error code mean and where do I go from here?